Feature
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Teen Brains on Trial
Scientific opinions differ about whether evidence on delayed maturation of the adolescent brain should be used to argue that teenagers have reduced culpability for crimes and thus should be exempt from the death penalty.
By Bruce Bower -
Health & MedicineDelaying Dementia
The limited success of attempts to treat Alzheimer's disease with several compounds that appear able to prevent the disorder suggests that the window for derailing the development of the illness may close years before cognitive decline becomes evident.
By Ben Harder -
Health & MedicineCoffee, Spices, Wine
Several dietary agents, including coffee, wine, and cinnamon, appear to restore some of the body's responsiveness to insulin, potentially slowing diabetes' onset or ravages.
By Janet Raloff -
ChemistrySpace Invaders
Recent astronomical observations and sophisticated lab experiments portray space as a breeding ground for complex organic molecules, the likes of which may have jump-started life on Earth.
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AnimalsHooking the Gullible
Research into fish behavior often reveals ways that bait designers can trick a fish into biting odd-looking lures, but angler appeal can also be an important marketing consideration.
By Sid Perkins -
TechReinventing the Yo-Yo
No longer simple toys, today's pricey yo-yos sport high-tech features—such as ball bearing transaxles and precision string-snagging mechanisms—that permit dazzling new styles and complex tricks.
By Peter Weiss -
AstronomyShades of Venus
On June 8, for the first time in 122 years, the silhouette of Venus will move across the face of the sun.
By Ron Cowen -
EarthTales of the Undammed
Although destroying dams is often presumed to restore rivers, the results of such action are actually mixed, according to recent studies.
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Quite a Switch
Cells use ribonucleic acids that bind to small molecules such as vitamins to control gene activity.
By John Travis -
AnthropologyMonkey Business
They're pugnacious and clever, and they have complex social lives—but do capuchin monkeys actually exhibit cultural behaviors?
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Health & MedicineAll Roads Lead to RUNX
Genetic mutations that predispose some people to the autoimmune diseases lupus, psoriasis, and rheumatoid arthritis appear to have a common molecular feature: They derail the work of a protein, called RUNX1, that regulates how active certain genes are.
By Ben Harder